Getting ready for the summit bid

Ask any climber what they are most concerned with when climbing Kilimanjaro and the majority of the time the answer is the summit attempt.
While every other night on the mountain is spent sleeping in tents, this night is spent making the final ascent to Uhuru Peak.
The trek to the top is a 4,000 feet climb which normally takes 6 to 8 hours. This is a significant amount of time to endure potentially subzero temperatures and strong winds while hiking slowly.